mtg serra card Serra, by shinjistrikes on DeviantArt damage that would reduce your life total to less than 1 reduces it to 1 instead Serra [Vanguard Series]

Furthermore, their activated ability is often repeatable, meaning they fit in another sub-category known as mana sinks

Stormcatch Mentor adds another variant to the EDH roster, and prowess gives this a shot in Standard

Put one of them into your hand and the rest on the bottom of your library in any order. Minus-seven : The controller of Teferi, Who Slows the Sunset gets an emblem that states Untap all permanents you control during each opponents untap step and You draw a card during each opponents draw step. Tapping permanents you dont control can take an opponents blocker out of commission or prevent them from casting an Instant spell if they were holding mana up

Do Disguised Creatures Have Summoning Sickness

Thus, Tarkir: Dragonstorm not only brings Storm back into Standard, but also Suspend

You draw three lands with an empty hand and this becomes 5/5, which would be awesome